JP2008075424A - Fingerprint lock system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fingerprint lock system aiming at an improvement in crime-prevention property. <P>SOLUTION: The fingerprint lock system, which controls locking/unlocking an electronic lock 3 based on an authentication result verifying a fingerprint or a vein of a finger of a user, includes a user-specific information input unit 12 and a collation controller 13. The user-specific information input unit 12 inputs fingerprint information and vein information of a plurality of the user's actual fingers as the user-specific information at the time of locking/unlocking of the electronic lock 3. The collation controller 13 registers/stores the fingerprint information and vein information of a plurality of the actual fingers of the user permitted for locking/unlocking the electronic lock 3 in a predetermined collation order as a collation ID, collates/authenticates the user-specific information inputted from the user-specific information input unit 12 with the collation ID including the collation order and outputs an unlocking order signal or a locking order signal for controlling lock/unlock the electronic key 3 when normally authenticating all the user-specific information including collation order. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, fingerprints and veins of a plurality of fingers of a user are registered as one ID, and the fingerprints and veins of the user's real finger are verified against the registered ID when the electric lock is unlocked. The present invention relates to a fingerprint lock system that controls locking and unlocking of an electric lock based on a verification result.

  As one aspect of an electric lock system that electrically controls the lock and unlocking, the user's fingerprint information and vein information are acquired, and verification is performed on whether or not the acquired fingerprint information and vein information are registered in advance. A fingerprint lock system that controls locking and unlocking of an electric lock based on the verification result is known. As a conventional fingerprint collation apparatus employed in this type of fingerprint lock system, various forms have been proposed as disclosed in Patent Documents 1 to 3 below.

For example, as shown in FIG. 4, a fingerprint collation device 51 disclosed in Patent Document 1 below includes a fingerprint image collection unit 52 that optically collects a fingerprint and outputs an image signal, and converts the image signal into fingerprint image data. A / D conversion unit 53 that extracts the feature parameter from fingerprint image data, the extracted feature parameter, and the registrant's feature parameter stored in memory 56 by registration unit 55 In the case of a registration target person who has a bad finger condition, the password is registered in advance together with the fingerprint registration, and after the password match is confirmed during fingerprint verification, the extracted features The parameter and the registrant's characteristic parameter stored in the memory are collated using a sweet threshold when using the password.
JP-A-9-297844 Japanese Patent Laid-Open No. 7-121712

  Conventional fingerprint collation devices that use fingerprints and veins are basically highly secure, but some users cannot register fingerprints or veins, or have fingerprints or veins that are difficult to register. In fact, it was actually registered in advance at a lower authentication level.

  In a fingerprint lock system employing a conventional fingerprint collation device, not only registration and authentication of a fingerprint or vein of one finger of a user as one ID but also an authentication level may be lowered during registration. There was a problem that the level was lowered. For this reason, for example, after verifying a password using a numeric keypad or a card together, the fingerprint of the user's finger or vein is authenticated to compensate for a decrease in the security level.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a fingerprint lock system capable of improving crime prevention as compared with the conventional art.

In order to achieve the above object, the fingerprint lock system according to claim 1 is a fingerprint lock system that controls locking and unlocking of an electric lock based on a fingerprint of a user's finger or a verification result of vein verification.
A user specific information input unit for inputting fingerprint information and vein information of a plurality of fingers of the user at the time of locking and unlocking the electric lock;
The fingerprint information and vein information of a plurality of fingers of a user who permits the locking and unlocking of the electric lock are registered and stored as one verification ID in a predetermined verification order, and from the user specific information input unit Unlocking command to control the locking and unlocking of the electric lock when the input user-specific information is verified against the verification ID and all of the user-specific information including the verification order is normally authenticated And a collation control unit that outputs a signal or a locking command signal.

The fingerprint lock system according to claim 2 is the fingerprint lock system according to claim 1,
As specific information for specifying a user at the time of locking and unlocking the electric lock, a specific information input unit for inputting at least one of a unique ID and a password is provided,
The verification control unit performs verification verification of the user specific information input from the user specific information input unit after normally authenticating the specific information input from the specific information input unit.

  According to the fingerprint lock system of the present invention, the fingerprint information and vein information of a plurality of real fingers of the user who permits the locking and unlocking of the electric lock are registered in advance as one ID including the collation order, Since the verification of the fingerprint and vein of the user's real finger and the registered ID, including the verification order (input order), is performed at the time of locking and unlocking the electric lock, the ID configuration can be changed without changing the hardware configuration. This can be done by simply changing the software part related to verification and authentication, and crime prevention can be improved compared to the prior art.

  In addition, after normal authentication of a fixed unique ID and password that identifies a user, if the verification of fingerprints and veins of multiple real fingers of the user including the verification order (input order) is performed, the security level can be further increased. Can be increased.

  Hereinafter, the best mode of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a schematic configuration of a fingerprint lock system according to the present invention, FIGS. 2A and 2B are diagrams showing an example of a collation ID of the fingerprint lock system according to the present invention, and FIG. It is an operation | movement flowchart at the time of the authentication process by a lock | rock system.

  The fingerprint lock system according to the present invention is adopted as various electric lock systems for homes, offices, banks, etc., for example, fingerprint information and vein information of a plurality of real fingers of a user who permits the locking and unlocking of the electric lock, The ID is registered in advance as one ID including the collation order, and the collation order (input order) is obtained from the user-specific information by the fingerprint of the actual finger or vein obtained from the user at the time of locking / unlocking the electric lock and the registered ID. Are also verified, and the electric lock is controlled to be unlocked based on the verification result. In addition, the user in this example includes both the case of one person and the case of a plurality of persons.

  As shown in FIG. 1, the fingerprint lock system 1 of this example is schematically configured to include a verification device 2 and an electric lock 3. And the collation apparatus 2 is further provided with the specific information input part 11, the user specific information input part 12, the collation control part 13, the electric lock drive control part 14, and the display part 15.

  The specific information input unit 11 inputs specific specific information for specifying a user when the electric lock 3 is locked and unlocked. This specific information can be set in advance by a fixed unique ID assigned by the administrator to the user (in the group unit when used by multiple users) or by an administrator or user (in the group unit when used by multiple users). And at least one of the pieces of information is performed by, for example, the user's own numeric keypad operation or reading from a card in which information is written in advance.

  The user specific information input unit 12 acquires fingerprint information and vein information of a plurality of real fingers of the user as user specific information, and inputs the acquired user specific information to the collation control unit 13. The user-specific information input unit 12 has a conventionally well-known configuration, although not particularly illustrated. For example, the user-specific information input unit 12 can be configured by including a finger rest, a light projecting unit, an optical lens, a detection unit, and an A / D conversion unit. The finger rest is composed of a prism for a user to place his / her finger and read fingerprint information and vein information of the actual finger. The light projecting means is composed of, for example, a semiconductor light emitting element (LED), and irradiates light on a fingerprint or vein of a finger placed on a finger rest. The optical lens is an optical system for taking out fingerprints and veins as image data. The detection unit is composed of, for example, a CCD image sensor or the like, and takes in fingerprint or vein image data. The A / D conversion unit quantizes the fingerprint and vein image data captured from the detection unit. The user specific information input unit 12 inputs fingerprint information or vein information based on the image data quantized by the above configuration to the collation control unit 13 as user specific information.

  The collation control unit 13 includes specific information (unique ID and password) input from the specific information input unit 11 and a pre-registered collation ID (a collation unique registered in advance in collation ID storage means 13b described later). ID and password), and when it is determined that they match, the user specific information (user fingerprint information and vein information) that is subsequently input from the user specific information input unit 12, The collation ID (the fingerprint information for collation and vein information registered in advance in the collation ID storage means 13b described later) information is collated including the collation order (input order), and both collation orders are also matched. It is determined whether or not all match, and the determination result signal is output to the electric lock drive control unit 14.

  As shown in FIG. 1, the collation control unit 13 includes a feature parameter extraction unit 13a, a collation ID storage unit 13b, and a collation determination unit 13c. The feature parameter extraction means 13a can be identified as the person who has the ridge direction, branch point, difference in blood flow, etc. from the fingerprint information and vein information of a plurality of real fingers of the user input from the user specific information input unit 12 The fingerprint and vein characteristic parameters are extracted, and the extracted characteristic parameters are output to the collation determination means 13c.

  In the verification ID storage means 13, fingerprints and veins of a plurality of real fingers of a user who permits the locking and unlocking of the electric lock 3 are registered and stored as one verification ID in a predetermined verification order. This collation ID includes user specific information (a fixed unique ID given to the user by the administrator at the time of registration, and a password arbitrarily determined by the administrator or the user at the time of registration).

  Specifically, as shown in FIG. 2 (a), when only one user is permitted to lock / unlock the electric lock 3, the order of thumb → ring finger → small finger → middle finger → index finger (arrow) Indicates the collation order) and the fingerprint and vein of Mr. A together with the specific information are registered and stored in advance in the collation ID storage means 13b as one collation ID. In addition, as shown in FIG. 2 (b), when there are two users, Mr. A and Mr. B, who permit the locking and unlocking of the electric lock 3, Mr. A ’s thumb → A ’s ring finger → B ’s The fingerprints and veins of Mr. A and Mr. B together with specific information in the order of the little finger → Mr. B's middle finger (arrows indicate the collation order) are registered and stored in advance in the collation ID storage means 13b as a single collation ID. The

  Each verification ID registered and stored in the verification ID storage means 13b is set in the state in which the normal operation mode is switched to the registration mode by, for example, a dip switch provided in the apparatus main body or a special key input. Can be registered in advance.

  The collation determination unit 13c determines whether or not the unique ID of the user input from the specific information input unit 11 matches the collation ID stored in the collation ID storage unit 13b. When it is determined that the unique ID matches the verification ID, whether or not the user password subsequently input from the specific information input unit 11 matches the verification ID stored in the verification ID storage unit 12b. Is determined.

  In this example, the specific information includes a fixed unique ID given to the user by the administrator in advance and a password determined by the administrator or the user. Is input from the specific information input unit 11 by a numeric keypad operation or reading from a card stored in advance as information. The input of the specific information can be at least one of a unique ID or a password. When the specific information is either the unique ID or the password, the matching information (the unique ID or password for matching) is registered and stored in advance in the matching ID storage unit 13b accordingly.

  The collation determining unit 13c then authenticates the user's specific information and then sequentially inputs the feature parameters of the user's fingerprint information and vein information input from the feature parameter extracting unit 13a, and the collation ID storage unit 13b. Are sequentially compared with each other, and it is determined whether or not all information including the collation order (input order) matches. Then, the collation determining unit 13c, when the feature parameters of the user's fingerprint information and vein information sequentially input from the feature parameter extracting unit 13a, including the collation order (input order), all match the collation ID, A determination OK signal indicating that the verification has been normally performed is output to the electric lock drive control unit 14 as a determination result signal. On the other hand, if at least one of the feature parameters of the user's fingerprint information and vein information does not match the collating ID including the collating order (input order), it is determined that the collation / authentication cannot be performed normally. The signal is output to the electric lock drive control unit 14 as a determination result signal.

  When the determination OK signal is input as the determination result signal from the collation determination means 13c, the electric lock drive control unit 14 sends an unlocking (or locking) command signal to the electric lock 3 for controlling the unlocking of the electric lock 3. Output.

  The display unit 15 is composed of, for example, a liquid crystal display, a display lamp, or the like. When the user approaches a predetermined area of the system 1, the display unit 15 instructs the user to input specific information (unique ID or password). After the normal authentication of the specific information, a display for instructing the user to input the fingerprint of the actual finger or the vein, the verification information of the specific information or the fingerprint / vein information, and the like are displayed.

  The electric lock 3 includes, for example, a driving device such as a motor and a solenoid, a lock, a detection circuit that monitors and detects a current door open / closed state and a locked / unlocked state. The electric lock 3 is driven by the unlocking (or locking) command signal input from the electric lock driving control unit 14 to unlock or lock the lock according to the current door open / closed state or unlocked state, For example, the lock is unlocked and unlocked by protruding (when locking) or pulling (when unlocking) a dead bolt into the locking hole of the door frame.

  Next, an operation during the authentication process of the fingerprint lock system 1 having the above configuration will be described with reference to FIG.

  When the fingerprint lock system 1 of this example is used, the user identification is made in a predetermined collation order for the fingerprints and veins of a plurality of real fingers of the user who is permitted to lock and unlock the electric lock 3 before operation. The information (unique ID, password) is registered and stored in the verification ID storage means 13b as one verification ID.

  In actual operation, when the user approaches the predetermined area of the system 1, the display unit 15 displays a guidance so as to instruct the user to input specific information (unique ID or password).

  And the collation determination means 13c of the collation control part 13 discriminate | determines whether there exists input of a user's unique ID from the specific information input part 11 (ST1). If it is determined that the user's unique ID has been input (ST1-Yes), it is determined whether or not the unique ID matches the verification ID registered in the verification ID storage means 13b (ST2). If the collation determining unit 13c determines that the unique ID matches the collating ID (ST2-Yes), the collation determining unit 13c determines whether the user's password is input from the specific information input unit 11 (ST3). If it is determined that the user's password is input (ST3-Yes), it is determined whether or not the password matches the verification ID registered in the verification ID storage unit 12b (ST4).

  When it is determined that the collation determination unit 13c has successfully collated and authenticated both the user's unique ID and password (ST4-Yes), the display unit 15 instructs the user to input a fingerprint of a real finger or a vein. Displays a guidance. Thereafter, when the fingerprints and veins of the user's real fingers are sequentially input from the user-specific information input unit 12 in accordance with the guidance display, the feature parameter extraction unit 13a performs the ridge direction from the fingerprints and veins of each finger in the input order. The fingerprint and vein characteristic parameters that can be identified as the principal, such as differences in blood flow, branch points, and blood flow, are extracted. The fingerprint information and vein information of each finger from which the feature parameters have been extracted are input to the collation determination unit 13c in the order of input.

  Then, the collation determination unit 13c determines whether or not there is input of fingerprint information or vein information of the real finger from which the feature parameter is extracted from the feature parameter extraction unit 13a (ST5). If it is determined that there is an input of fingerprint information or vein information of the finger from which the feature parameter is extracted (ST5-Yes), the fingerprint information or vein information is compared with the verification ID stored in the verification ID storage means 13b, It is determined whether or not they match including the collation order (input order) (ST6). If it is determined that the fingerprint information and vein information match the ID for verification including the verification order (input order) (ST6-Yes), all fingerprint information and vein information are verified including the verification order (input order). It is determined whether or not it matches the business ID (ST7). If the fingerprint information or vein information of the first finger matches the verification ID, the process returns to the determination process of ST5 to determine whether or not there is input of fingerprint information or vein information of the next finger.

  Then, the collation determination unit 13c collates and authenticates the fingerprint information and vein information of each finger inputted in order from the feature parameter extraction unit 13a and the collation ID registered in advance in the collation ID storage unit 13b, When it is determined that all the fingerprint information and vein information match the ID for verification including the verification order (input order) (ST7-Yes), the electric lock drive is performed using the determination OK signal indicating that the verification has been normally performed as a determination result signal. Output to the control unit 14. For example, if the user is Mr. A and stored in the collation ID storage means 13b in the order of thumb → ring finger → small finger → middle finger → index finger, the user's fingerprint information and veins input from the user specific information input unit 12 If the information matches all of the verification IDs including the verification order (input order), a determination OK signal indicating that the verification has been normally performed is output to the electric lock drive control unit 14. On the other hand, if at least one fingerprint information or vein information does not match the verification ID, a determination NG signal indicating that the verification could not be normally performed is output to the electric lock drive control unit 14 as a determination result signal.

  When the determination OK signal is input as the determination result signal from the collation determination means 13c, the electric lock drive control unit 14 outputs an unlocking (or locking) command signal for unlocking (or locking) the lock of the electric lock 3. Output to the electric lock 3 (ST8). When the unlocking (or locking) signal is input from the electric lock drive control unit 14, the electric lock 3 unlocks (or locks) the lock according to the current open / closed state and unlocked state of the door.

  As described above, according to the fingerprint lock system of this example, the fingerprint information and vein information of a plurality of real fingers of the user who permits the unlocking and unlocking of the electric lock, including the collation order (input order), are stored in one. It is registered in advance as an ID, and when the electric lock is locked / unlocked, verification and authentication of the fingerprint and vein of the user's real finger and the registered ID, including the verification order (input order), is performed. It is possible to cope with the problem by simply changing the software part related to the ID verification authentication without changing it, and it is possible to improve the crime prevention as compared with the prior art.

  Moreover, since the fingerprints and veins of a plurality of real fingers of the user including the matching order (input order) are collectively verified as one ID, the conventional fingerprint and veins of one finger are assigned as one ID. Compared to what to do, crime prevention is greatly improved. For example, even when there is one user, as one ID, thumb → ring finger → small finger → middle finger → index finger (arrow indicates the collation order), middle finger → thumb → little finger (arrow indicates the collation order), little finger → index finger (Arrow indicates collation order), ring finger → index finger → thumb → middle finger (arrow indicates collation order), etc. By changing the number of fingers (at least 2) and the order of crime prevention performance Can be improved.

  Further, the present system can also be adopted when unlocking a safe by the presence of a plurality of users, such as a bank. Specifically, when both Mr. A and Mr. B are present as users, the fingerprints of Mr. A and Mr. B's fingers in the order (verification order) of Mr. Thumb A, Mr. Ring A, Mr. Little Finger B, and Mr. Middle Finger B If the ID and vein are registered and stored in the collation ID storage means 13b in advance as one collation ID including specific information (unique ID, password), the fingerprints of Mr. A and Mr. B's fingers Since the safe cannot be unlocked unless all the veins and veins match in the above collation order, the crime prevention performance can be further improved.

  In the case of a plurality of users, at least one fingerprint or vein of all the real fingers of all the users, including the collation order (input order), together with the specific information, is used as a collation ID. What is necessary is just to memorize | store in the memory | storage means 13b.

  Furthermore, in the system of this example, in order to further increase security, the user's specific information (unique ID and password) is also authenticated before performing verification authentication of fingerprints and veins of multiple real fingers of the user, As in the present situation, it is possible to use a numeric keypad, a card, or the like for acquiring user specific information, but sufficient security can be maintained even if acquisition of the user specific information is omitted.

  By the way, in the configuration of FIG. 1, the configuration of the electric lock drive control unit 14 is deleted, and a determination result signal output from the collation determination means 13c is input to an electric lock control panel that has been generally used conventionally. The electric lock 3 can be controlled to be locked and unlocked from the electric lock control panel based on the result signal and the current open / closed state and unlocked state of the electric lock 3. According to this configuration, fingerprint authentication with high security can be realized by utilizing only the hardware configuration of the existing electric lock control panel and changing only the software part related to the authentication processing.

It is a block diagram which shows schematic structure of the fingerprint tablet system which concerns on this invention. (A), (b) It is a figure which shows an example of ID for collation of the fingerprint lock system which concerns on this invention. It is an operation | movement flowchart at the time of the authentication process by the fingerprint lock system which concerns on this invention. It is a block diagram which shows schematic structure of the conventional fingerprint collation apparatus disclosed by patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fingerprint lock system 2 Collation apparatus 3 Electric lock 11 Specific information input part 12 User specific information input part 13 Collation control part 13a Feature parameter extraction means 13b Collation ID memory | storage means 13c Collation determination means 14 Electric lock drive control part 15 Display part

Claims (2)

In the fingerprint lock system that controls the locking and unlocking of electric locks based on the fingerprint authentication result of the user's finger and vein verification,
A user specific information input unit for inputting fingerprint information and vein information of a plurality of fingers of the user at the time of locking and unlocking the electric lock;
The fingerprint information and vein information of a plurality of fingers of a user who permits the locking and unlocking of the electric lock are registered and stored as one verification ID in a predetermined verification order, and from the user specific information input unit Unlocking command to control the locking and unlocking of the electric lock when the input user-specific information is verified against the verification ID and all of the user-specific information including the verification order is normally authenticated A fingerprint lock system comprising: a collation control unit that outputs a signal or a lock command signal. As specific information for specifying a user at the time of locking and unlocking the electric lock, a specific information input unit for inputting at least one of a unique ID and a password is provided,
The verification control unit performs verification verification of user-specific information input from the user-specific information input unit after normally authenticating specific information input from the specific-information input unit. The fingerprint tablet system according to 1.

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